An electronics store chain sells headphones. The company is about to introduce a new headphone model that is expected to sell very well across its various stores. These are the projected revenue and cost functions for the headphones: R(x) = -210x2 + 6,970x C(x) = -170x + 39,690 Which two statements are true?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?